BURIED TREASURE: There’s a lot of commemorative Woodstock merch flooding the shops to coincide with the festival’s 40th anniversary, but a new limited-edish box set gives us something different: the 6-CD bonanza includes 38 previously unreleased songs from Creedence Clearwater Revival, the Grateful Dead, the Who, Jefferson Airplane, and others. “Woodstock: 40 Years on: Back to Yasgur's Farm” is $80; available at Academy Records, 12 West 18th Street near Sixth Avenue; 212-242-3000.

TODAY ONLY: Stash Consignment throws its first annual Stretch Your Summer sale. Scoop up “pre-loved couture” at up to 70% off from names like Prada, Balenciaga, D&G, Hermès, and more. (Plus: There will be cocktails!). 1182 Broadway near 28th Street; 12-7PM.